Sachusetts



7 June 2, 1931.

A. E. BRICKMAN 7,7

TAKE-UP MECHANISM FOR LOOKS Filed 1929 5.Sheets-Sheet l W i .[N v5 /v 70/? 5 I ALLE/ViBR/[KMAN U mil (DO H M WE. A TTURNEVfi June 2, 1931. A.E. BRICKMAN TAKE-UP MECHANISM FOR LOOKS 3 Sheets-Sheet 2 Filed Oct. 11.1929 IN VE/V TOR A1. L E/\/ E. ER/EKMA/V q W TTUENEYJS I June 2, 1931.

A. E. BRICKMAN 1,807,726

TAKE-UP MECHANISM FOR LOOKS Filed Oct. 11. 1929 b Sheets-Sheet s fvvE/v70/? ALLEN [-BR/[KMAA/ Patented June 2, 1931 UNITED STATES PATENT OFFICEALLEN E. BRICKMAN, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON &

KNOWLES LOOM WORKS, F WORCESTER, MASSACHUSETTS, A CORPORATION OF MAS-SACHUSETTS TAKE-UP MECHANISM FOR LOOMS Application filed October 11,1929. Serial No. 399,056.

This invention relates to looms and particularly to take-up mechanismtherefor. In such looms, it is desired to disable the take-up mechanismwhen the loomis stopped, so that the lay may be moved backward orforward without causing a taking up of the cloth.

It is preferred in some mills that the takeup be disabled by lifting thefeed pawl out of contact with the ratchet, so that no further movementof the ratchet can take place so long as the shipper handle is instopping position.

In other mills, it is desired that the takeup be disabled by lifting theholding pawl out of contact with the ratchet. In this latter case, thefeed pawl can rock the ratchet as usual, but the advance position of theratchet wheel is not retained by the holding pawl, so that the ratchetmerely rocks back and forth over a slight arc in unison with themovement of the feed pawl, but no progressive advance movement of theratchet occurs.

It is the object of my invention to provide a take-up mechanism sodesigned that it may be easily adapted to release either the take-up orthe holding pawl, as may be desired under selected operating conditions.

My invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particu- V larly pointedout in the appended claims.

A preferred form of the invention is shown in the drawings in which iFig. 1 is a side elevation of parts of a loom embodying my improvedtake-up mechanism;

Fig. 2 is a front elevation thereof;

Fig. 3 is an enlarged plan View of certain parts;

Fig. 4 is an enlarged sectional side elevation, taken along the line 44in Fig. 3;

Figs. 5 and 6 are views similar to Fig. 4, but showing the mechanism setto disable the feed pawl; and

Figs. 7 and 8 are views similar to Figs. 5 and 6, but showing themechanism set to disable the holding pawl.

Referring to the drawings, I have shown certain parts of a loomincluding the loom frame 10 and the lay 11 mounted on swords l2 andswinging about the axis of a rock shaft 13. The fabric F passes over abreast beam 14 to a take-up roll 15 by which the cloth is drawn forwardin the usual manner. The roll 15 is provided with a ratchet wheel 16fixed to the shaft or gudgeon 18 thereof and determining its advancemovement.

A feed lever 20 is mounted on the shaft or gudgeon 18 of the take-uproll 15 and is rocked thereon by a link 22, by which the lever 20 isconnected to an arm 23 on the rock shaft 13. A feed pawl 24 is pivotedat 25 to the feed lever 20 and is held in contact with the ratchet 16 bya spring 26.

A holding pawl (Fig. 4) is pivoted at 32 in a segmental slot 33 formedin the end of an arm 34 which is maintained in fixed position on theloom frame. The holding pawl 30 is yieldingly forced against the ratchet16 by a tension spring 35. The studs 25 and 32 -are placed as near aspractical to'the ratchet 16, so that the engaging A shipper or knockofflever 40 is keyed. to a stud 42, pivotally mounted adjacent the ratchet16, and is provided with a pair of openings 43 and 44 each adapted toreceive an engaging stud. A release lever is also plvoted on the stud 42and 1s similarly provided with a pair of openings 53 and 54, alsoadapted to receive an engaging stud.

A pair of studs 55 and 56 are provided, the stud 55 fitting either oneof the openings 43 or 53 and the stud 56 fitting either one of theopenings 44 or 54. Then one of the studs is placed in an opening of thelever 40, the other stud is placed in the prevents displacement of thelever 50.

oppositely positioned opening of the lever 50.

\Vhen the stud is in the opening 43 ot the lever 40 and the stud 56 isin the opening of the lever 50, shown in Figs. 3 to G, the operation ofthe device is as follows The normal running position is as indi cated inFig. 4, with the stud in position to engage the tail 24 ot' the feedpawl 24. .Vhen the shi per lever 40 is swung to the stopping positionindicated in Fig. 5, the stud engages the tail 2st and raises the feedpawl 2% from the ratchet 16, thus disabling the feed. If the weaverthereafter desires to entirely release the ratchet wheel so that thetension on the cloth may be relieved, he swings the release lever 50from the position shown in Fig. 5 to the position shown in Fig. (3. Bysuch movement, the stud 5G in the lever 50 engages a lug or projection30 of the holding pawl 30, raising the same to the inoperative positionshown in Fig. 6.

A cross pin (Fig. 6) is inserted in recesses 61 in the end of the lever50 and A shoulder 63 is formed on the lever 50 and engages a fixed stud64, thus limiting swinging movement of the lever 50 under the influenceof the spring 35.

If it is desired to release the holding pawl when the shipper handle isthrown off, the studs 55 and 56 are shifted to the openings 53 and 44respectively, as indicated in 7 and S, and the shipper or knockotl lever40 then acts through the stud 56 to engage the lug 50 and raise theholding pawl, as indicated in Fig. 7.

The release lever 50 can thereafter be swung to the position shown inFig. 8 to engage the tail 24" and render the take-up pawl 2i inoperativewhen it is desired to release all tension on the cloth.

I have thus provided a very convenient mechanism by which the take-upand holding pawls may be released in either of two desired orders.Either the take-up pawl may e released with the shipper lever and theholding pawl with the release lever, or the holding pawl may be releasedwith the shipper lever and the feed pawl with the release lever.

I am thus able to provide a single set of parts by which the take-upmechanism may be adapted to operate under the require ments of millswhich'desire either the one or the other sequence of operations as abovedefined.

Having thus described my invention and the advantages thereof, I do notwish to be limited to the details herein disclosed, otherwise than asset forth in the claims, but what I claim is l. A. loom take-upmechanism comprising a ratchet, a feed pawl, a holding pawl, a

shipper lever, a release lever, and means by which either lever may berendered effective to disable either pawl.

2. A loom take-up mechanism comprising a ratchet, a feed pawl, a holdingpawl, a shipper lever, a release lever, each of said levers having anopening at each side of the pivot thereof, and a pair of studs eachinsertable in an opening in either lever, said studs being etlective toengage and disable said pawls in a selected sequence.

3. A loom take-up mechanism comprising a ratchet, a feed pawl, a holdingpawl, and means to stop the loom and to substantially simultaneouslydisable one of said pawls, said disabling means including a devicehaving two different settings, said device in one setting rendering saidmeans eflective to disable one pawl and in the other setting renderingsaid means effective to disable the other pawl.

4. A loom take-up mechanism comprising a 'atchct, a feed pawl, a holdingpawl, means to stop the loom and to substantially simultaneously disableone of said pawls, and means to thereafter disable the other pawl, saidfirst and second disabling means including separate devices associatedwith said first and second means and each having two settings, eachdevice in one setting rendering its associated means effective todisable one pawl and in the other setting rendering said means efiectiveto disable the other pawl.

In testimony whereof I have hereunto aflixed my signature.

ALLEN E. BRIGKMAN.

